44 citations · 110 across the 5 of their papers we have counts for
5 papers
Adaptive Analytical Ray Tracing of Black Hole Photon Rings
Alejandro Cárdenas-Avendaño, Alexandru Lupsasca, Hengrui Zhu
Recent interferometric observations by the Event Horizon Telescope have resolved the horizon-scale emission from sources in the vicinity of nearby supermassive black holes. Future…
Pulsar Double-lensing Sheds Light on the Origin of Extreme Scattering Events
Hengrui Zhu, Daniel Baker, Ue-Li Pen +2
In extreme scattering events, the brightness of a compact radio source drops significantly, as light is refracted out of the line of sight by foreground plasma lenses. Despite rece…
Probing the local interstellar medium with scintillometry of the bright pulsar B1133+16
James W. McKee, Hengrui Zhu, Daniel R. Stinebring +1
The interstellar medium hosts a population of scattering screens, most of unknown origin. Scintillation studies of pulsars provides a sensitive tool for resolving these scattering…
Agmon-type decay of eigenfunctions for a class of Schrödinger operators with non-compact classically allowed region
Christoph A. Marx, Hengrui Zhu
An important result by Agmon implies that an eigenfunction of a Schrödinger operator in with eigenvalue below the bottom of the essential spectrum decays exponen…
Deconvolving Pulsar Signals with Cyclic Spectroscopy: A Systematic Evaluation
Timothy Dolch, Daniel R. Stinebring, Glenn Jones +8
Radio pulsar signals are significantly perturbed by their propagation through the ionized interstellar medium. In addition to the frequency-dependent pulse times of arrival due to…